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This study found that 1,540 nm fractional erbium-glass laser treatment combined with topical minoxidil significantly increased hair regrowth in alopecia areata patches compared to minoxidil alone, with response rates of 60% versus 16%, though the long-term effects remain unknown.

The editorial discusses the effectiveness and safety of various laser and energy-based cosmetic treatments.

This editorial discusses the terminology and distinctions between Low-Level Light/Laser Therapy and Photobiomodulation Therapy but reports no new clinical findings.

This study found that 1550-nm Er:Glass fractional laser treatment significantly increased hair density and shaft diameter in patients with androgenetic alopecia, though the mechanism may not involve Wnt10A or IGF-1 expression.

This study found that combining low-level light therapy with platelet-rich plasma significantly improved hair parameters in men with androgenic alopecia, although most improvements decreased after treatment stopped.

This review discusses the use of laser and intense light sources for hair removal and reports no new clinical results; the authors highlight the potential for aesthetic medicine to include these technologies.

In this study, a triple wavelength laser was found to be highly effective and well-tolerated for reducing hair in Indian women with Fitzpatrick skin types III and IV, achieving an average hair count reduction of 86.5%, with only mild and transient adverse effects observed.

The study suggests that CO₂ laser creates hair transplant channels with significantly less lateral thermal damage than Ho:YAG laser in the human scalp.

This study found that high-resolution laser speckle contrast imaging devices provide good reproducibility for assessing skin perfusion in mice but not for measuring haemoglobin oxygenation.

This literature review reported that fractional lasers, like the 1550-nm nonablative erbium-glass laser, may enhance hair regrowth by stimulating a wound healing process, but more randomized controlled trials are needed to confirm their effectiveness and optimize treatment parameters.

This article discusses the scientific and safety aspects of optical hair removal devices but reports no new clinical results; it notes encouraging initial reports of long-term efficacy.

LLLT is a safe, promising hair loss treatment, but more research needed.

This review compares the CO2 and Er:YAG laser treatments for acne scars, noting that while CO2 lasers offer deeper tissue penetration for severe scars, Er:YAG lasers pose a lower risk of post-inflammatory hyperpigmentation, and recommends personalizing treatments and considering combination therapies.

This study describes a new method using near infrared femtosecond laser pulses to precisely ablate individual cells in the Drosophila epidermis and peripheral nervous system without damaging surrounding tissues, allowing for detailed observation of cellular responses post-ablation.

In this study, photobiomodulation treatment using a red low-level laser significantly increased hair density in men with androgenetic alopecia over 10 weeks, yet no additional improvement was observed between the 5-week and 10-week marks.

This article reviews low-level light therapy for various types of hair loss and reports no new clinical results; the authors note its safety and advantages but lack data on individual treatment response.

This study observed that PRP treatment resulted in greater improvement in hair thickness and density in alopecia areata patients compared to LLLT, with benefits sustained over 12 weeks.

Lasers are effective for hair removal, especially for conditions like excessive hair growth.

This review reports that low-level laser therapy significantly increased hair density in androgenetic alopecia patients compared to a sham treatment, with variations in effectiveness based on treatment intensity and duration.

This study found that the long-pulsed alexandrite laser effectively reduced hair growth with varying efficacy depending on the pulse duration, anatomic location, and number of treatments, without causing permanent adverse effects in skin types I–III.

This study evaluated an 808-nm diode laser at different fluences for permanent axillary hair removal in Korean women and found that high-fluence treatment (14 J/cm2) effectively reduced hair density and thickness, with no significant difference in comfort compared to lower fluences.

This review assesses low-level laser therapy in plastic surgery and reports that it may improve flap survival and burn scars, but lacks efficacy for venous ulcers, alopecia, and skin aging.

This study discusses the importance of understanding the physical and biophysical factors involved in laser hair removal, highlighting the role of device parameters and skin type in treatment effectiveness, while also acknowledging potential adverse effects from laser light exposure.

This study concluded that both low and incremental radiant exposures of diode lasers produced similar hair reduction and patient satisfaction, but low radiant exposure was less painful and better tolerated.

The 1540nm fractional erbium-glass laser helps treat hair loss caused by hormones.

This review highlights that laser and light treatments could serve as safe and effective alternatives to current therapies for alopecia areata, with the excimer laser showing positive results, though further randomized controlled trials are necessary to establish optimal treatment protocols.

Low-level laser therapy may help regrow hair in dogs with non-inflammatory hair loss.

In this study, the combination of CO2 fractional laser therapy with Bimatoprost 0.03% was found to be more effective in promoting hair regrowth in Alopecia Areata patients than laser therapy alone, with higher response rates and minimal adverse effects reported.